STYRON® 685P is a high heat crystal polystyrene (PS) grade. Offers toughness, gloss, stiffness, flow, cost, high tensile strength and exhibits high heat resistance. Provides better color consistency, the ability to down-gauge and improved wall thickness distribution. Is suitable for processing by thermoforming, extrusion and injection molding. Applications include packaging/foam disposables, foam products like egg cartons, meat trays and clamshells, consumer electronics and medical devices.Is a FDA 21 CFR 177.1640, UL94 HB E326906 and USP Class VIcompliant grade.
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Chemical family:
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| Bio Based content | Visible After Login |
| Color | Visible After Login |
| Appearance | Visible After Login |
Compliance
| Food Contact Approval | Visible After Login |
| Certifications & Compliance | Visible After Login |
Applications
Recommended markets
Applications
Conversion mode
Availability
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STYRON™ 685P properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flexural Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Flexural Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Rockwell L | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Izod | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Modulus of Elasticity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Elongation | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Rupture | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Linear Mold Shrinkage | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| CTE, Linear | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vicat Softening Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
STYRON™ 685P Processing Guidelines
Extrusion Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Adapter | Visible After Login | Visible After Login | |
| Die Temperature | Visible After Login | Visible After Login | |
| Head Pressure | Visible After Login | Visible After Login | |
| Melt Pump | Visible After Login | Visible After Login | |
| Melt Temperature | Visible After Login | Visible After Login | |
| Pipes | Visible After Login | Visible After Login | |
| Polishing Roll Temperature | Visible After Login | Visible After Login | |
| Screen Changer | Visible After Login | Visible After Login | |
| Screw Compression ratio | Visible After Login | Visible After Login | |
| Zone 1 Temperature | Visible After Login | Visible After Login | |
| Zone 2 Temperature | Visible After Login | Visible After Login | |
| Zone 3 Temperature | Visible After Login | Visible After Login | |
| Zone 4 Temperature | Visible After Login | Visible After Login | |
| Zone 5 Temperature | Visible After Login | Visible After Login | |
| Zone 6 Temperature | Visible After Login | Visible After Login | |
Injection Molding Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Back Pressure | Visible After Login | Visible After Login | |
| Mold Temperature | Visible After Login | Visible After Login | |
| Nozzle Temperature | Visible After Login | Visible After Login | |
| Zone 1 Temperature | Visible After Login | Visible After Login | |
| Zone 2 Temperature | Visible After Login | Visible After Login | |
| Zone 3 Temperature | Visible After Login | Visible After Login | |